Homework 15.23


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Sergio Alvarez 2L
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Joined: Fri Sep 25, 2015 3:00 am

Homework 15.23

Postby Sergio Alvarez 2L » Mon Feb 22, 2016 8:38 pm

For part c, when trying to find [A]t, why do you subtract the value found from the mole ratio from 0.153, the value of [A]0?

Ronald Yang 2F
Posts: 86
Joined: Fri Sep 25, 2015 3:00 am

Re: Homework 15.23

Postby Ronald Yang 2F » Mon Feb 22, 2016 9:41 pm

Because the amount that the concentration of B increases is essentially the amount that the concentration of A decreases (since you use up A to make B). Thus, you subtract the value you find with the mole ratio from the original amount of A to figure out the amount of A after that 115 seconds pass.


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